CALMSUDOKU
// PLAY WITH MUSIC //
5 Difficulty LevelsFrom Beginner to Expert
Notes ModeTrack your possibilities
XP & Ranking SystemEarn points, climb ranks
Sound EffectsImmersive space audio
Pacific Digital
Play Sudoku online for free with no ads, no registration, and optional live radio while you solve. Choose your difficulty and start playing instantly.
Choose a station and press Play.
Pacific Digital
Start a fresh Sudoku puzzle instantly—free, ad-free, and with no registration required. Choose a level, use notes when you need them, and play at your own pace.
Beginner through Expert puzzles are generated with a single verified solution, so every game can be solved fairly.
Fill each row, column, and 3×3 box with the numbers 1 through 9, without repeating a number in any group.
Licensed music and radio stations can be added without leaving the puzzle. The player stays quiet until approved streams are configured.
No ads. No registration required. Optional one-time support helps keep CalmSudoku free.